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Massage clients report bizarre flu-like reaction after popular spa treatment

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McGreal, K. (2026, September 20). Massage clients report bizarre flu-like reaction after popular spa treatment. Fox News. https://www.foxnews.com/health/massage-clients-report-bizarre-flu-like-reaction-after-popular-spa-treatment

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Fox News · collected 2026-09-20 · by Kelly McGreal

Quick Summary

Some massage clients are experiencing flu-like symptoms such as aches, fatigue, and headaches after their sessions, an issue often referred to online as "massage flu." Health experts like W. Zach Smith, a physical therapist in Seattle, and Drew Voelsch, a chiropractor from Illinois, confirm that while these symptoms can occur due to the body's inflammatory response or muscle soreness from deep pressure, there is no scientific basis for claims that massages release toxins. Both professionals suggest reducing pressure or session length and staying hydrated to alleviate discomfort.
Written by AI on 2026-09-21, from this article's own text only (the story summary below draws on all the coverage).

AI analysis

Story summary

Some massage clients are reporting flu-like symptoms such as aches, fatigue, and headaches after receiving treatments at popular spas. This reaction, sometimes called "massage flu" online, is not recognized by health experts as an official medical diagnosis. W. Zach Smith, a Seattle-based physical therapist and co-founder of HIDEF Physical Therapy, has heard from patients experiencing these symptoms but notes that the term “flu” for this condition is recent.

Smith explains that soreness often occurs when intense pressure is applied to muscles over extended periods, particularly if clients are not accustomed to regular massages. He adds that applying excessive pressure can cause tissue bruising and a mild inflammatory response contributing to discomfort. The phenomenon has been known in the wellness industry for some time but described primarily as post-massage fatigue and soreness until recently.

Written for “Bizarre Reaction From Spa Treatment” on 2026-11-01, grounded in this article and the 0 other(s) covering the same event.

Story

📰 Bizarre Reaction From Spa Treatment
Health · 1 article(s) covering the same event.

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How this article was measured signals, leaning charts, publisher record, byline, topics and claims

Signals How these are calculated →

Claims extracted
19
sentences that state something as happening or true
Uncertain
37%
7 of 19 hedged ("reportedly", "may", "according to")
Leaning
not political
takes no side on a contested political question
Publisher signals
69/100
Fox News's corrections and hedging, across everything collected from it. Not a measure of accuracy.
Outlets on this story
1
Health
Same framing elsewhere
1
articles that frame the event the way this one does
Analyzed 2026-09-21 · how these are computed

How this is being covered How these are calculated →

Article leaning vs. publisher reliability
Source leaning vs. consistency

Publisher

Fox News · 6225 article(s) · 11 correction(s) detected
Running correction rate · 11 correction(s)

Who wrote this

Kelly McGreal
47 article(s) here · 1 carrying a prediction
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Also by Kelly McGreal
Nothing else under this byline is closely related to this article, so these are simply their most recent.
All 47 articles by Kelly McGreal →

Topics

Forza Chiropractic Fox News Digital HIDEF Physical Therapy Illinois Seattle

Subjects

Smith PERSON · 7× Voelsch PERSON · 4× Fox News Digital ORG · 2× Drew Voelsch PERSON · 1× Forza Chiropractic ORG · 1× HIDEF Physical Therapy ORG · 1× Illinois ORG · 1× Seattle GPE · 1× W. Zach Smith PERSON · 1×

Narrative

The reaction is sometimes referred to online as "massage flu," though health experts say it is not an actual medical diagnosis. "This phenomenon is something I have definitely heard of and had patients tell me," W. Zach Smith, a Seattle-based physical therapist and co-founder of HIDEF Physical Therapy, told Fox News Digital.
framing: mixed · carried by 1 article(s) · first seen 2026-09-21
🔮 The body may also have a mild inflammatory response after a massage, which can contribute to soreness, Smith said.

Claims (19 extracted, 7 hedged)

A popular wellness treatment is allegedly leaving some people with unexpected symptoms, including aches, fatigue and headaches. uncertain
treatment → leave → aches
Social media users have described feeling under the weather after getting a massage, with some saying they feel as though they are coming down with an illness. asserted
they → describe → illness
The reaction is sometimes referred to online as "massage flu," though health experts say it is not an actual medical diagnosis. "This phenomenon is something I have definitely heard of and had patients tell me," W. Zach Smith, a Seattle-based physical therapist and co-founder of HIDEF Physical Therapy, told Fox News Digital. asserted
Smith → refer → Digital
"The idea of this has been around a long time but usually described as fatigue and soreness," Smith said. asserted
Smith → describe → fatigue
"The flu part of the name I have heard more recently. asserted
I → hear → name
" Soreness can happen when a lot of pressure is applied to the muscles for a long period of time, especially if someone is not used to getting massages, Smith added. asserted
Smith → happen → massages
"Any time you go in and apply a lot of pressure to a muscle for a long period of time, it can essentially bruise the tissue," he said. asserted
he → go → tissue
The body may also have a mild inflammatory response after a massage, which can contribute to soreness, Smith said. uncertain
Smith → have → soreness
Drew Voelsch, a chiropractor at Forza Chiropractic in Illinois, said he has also heard patients refer to the reaction as "massage flu" or an "adjustment hangover. asserted
patients → say → flu
" "The symptoms are real," Voelsch told Fox News Digital, pointing to soreness, fatigue and mild headaches that may last 24 to 48 hours. uncertain
that → tell → hours
A massage around the neck, scalp or jaw can also trigger headaches because those areas can be involved in tension headaches, according to Smith. uncertain
areas → trigger → Smith
Both experts pushed back on the idea that these symptoms are caused by a massage "releasing toxins" from the body, a claim that has circulated in social media comments. uncertain
that → push → comments
"This is a myth," Smith said. asserted
Smith → say → ?
" Voelsch agreed, noting that the liver and kidneys handle the body's waste-removal processes. asserted
liver → agree → processes
To help reduce discomfort, Smith recommended asking for less pressure or a shorter massage and gradually working up to deeper or longer sessions. asserted
Smith → help → sessions
Voelsch also suggested drinking water, eating something light beforehand and moving gently afterward. uncertain
Voelsch → suggest → something
Mild soreness is typically not a cause for concern, but Smith said new or persistent pain may be a reason to contact a doctor. uncertain
pain → say → doctor
"If you are having a new, unexplained pain that is persistent, that would be a good time to call your doctor," he said. asserted
he → have → doctor
Voelsch recommended seeking medical advice if symptoms last longer than about 72 hours or include fever, sharp or radiating pain, numbness or tingling, spreading swelling or bruising, or faintness. asserted
symptoms → recommend → fever
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